JP2001076325A - 変位検出装置及び情報記録装置 - Google Patents

変位検出装置及び情報記録装置

Info

Publication number
JP2001076325A
JP2001076325A JP25354499A JP25354499A JP2001076325A JP 2001076325 A JP2001076325 A JP 2001076325A JP 25354499 A JP25354499 A JP 25354499A JP 25354499 A JP25354499 A JP 25354499A JP 2001076325 A JP2001076325 A JP 2001076325A
Authority
JP
Japan
Prior art keywords
light
light beam
reflecting
reflected
linearly polarized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP25354499A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001076325A5 (enrdf_load_stackoverflow
Inventor
Hidejiro Kadowaki
秀次郎 門脇
Yasushi Kaneda
泰 金田
Takayuki Kadoshima
孝幸 門島
Shigeki Kato
成樹 加藤
Sakae Horyu
榮 法隆
Akira Ishizuka
公 石塚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP25354499A priority Critical patent/JP2001076325A/ja
Priority to US09/655,342 priority patent/US6618218B1/en
Publication of JP2001076325A publication Critical patent/JP2001076325A/ja
Publication of JP2001076325A5 publication Critical patent/JP2001076325A5/ja
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59633—Servo formatting

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Length Measuring Devices By Optical Means (AREA)
JP25354499A 1999-09-07 1999-09-07 変位検出装置及び情報記録装置 Withdrawn JP2001076325A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP25354499A JP2001076325A (ja) 1999-09-07 1999-09-07 変位検出装置及び情報記録装置
US09/655,342 US6618218B1 (en) 1999-09-07 2000-09-05 Displacement detecting apparatus and information recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25354499A JP2001076325A (ja) 1999-09-07 1999-09-07 変位検出装置及び情報記録装置

Publications (2)

Publication Number Publication Date
JP2001076325A true JP2001076325A (ja) 2001-03-23
JP2001076325A5 JP2001076325A5 (enrdf_load_stackoverflow) 2006-10-19

Family

ID=17252858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25354499A Withdrawn JP2001076325A (ja) 1999-09-07 1999-09-07 変位検出装置及び情報記録装置

Country Status (2)

Country Link
US (1) US6618218B1 (enrdf_load_stackoverflow)
JP (1) JP2001076325A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006112974A (ja) * 2004-10-15 2006-04-27 Canon Inc 位置検出装置及び方法
JP2007033317A (ja) * 2005-07-28 2007-02-08 Canon Inc 干渉測定装置
US7406198B2 (en) 2003-03-25 2008-07-29 Fujitsu Limited Image capture apparatus
JP2012233829A (ja) * 2011-05-06 2012-11-29 Canon Inc 干渉計測装置
CN107942289A (zh) * 2017-12-13 2018-04-20 苏州科瓴精密机械科技有限公司 定位模块及具有其的机器人
US11885742B2 (en) 2019-03-26 2024-01-30 Nec Corporation Receiver, detection system, and detection method

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JP2002124047A (ja) * 2000-10-11 2002-04-26 Sony Corp 磁気ディスク装置
CN1745175A (zh) * 2003-02-01 2006-03-08 神经实验室有限公司 自动免疫产生针对可溶性A－β的抗体
US7050173B2 (en) * 2003-04-01 2006-05-23 Seagate Technology Llc Method and arrangement for removing noise and measurements of head-media spacing modulation for digital recording
US7064841B2 (en) * 2003-04-01 2006-06-20 Seagate Technology Llc Method and arrangement for topographically characterizing a surface of a hard disk with distortion due to disk modes removed
KR100503007B1 (ko) * 2003-06-24 2005-07-21 삼성전기주식회사 광픽업용 액추에이터의 부공진 측정 장치
JP2005121448A (ja) * 2003-10-16 2005-05-12 Pioneer Electronic Corp 光ピックアップの出射光検査装置
US8289384B2 (en) * 2004-06-07 2012-10-16 Nuflare Technology, Inc. Electron beam displacement measuring method, electron beam displacement measuring device, and electron beam recording apparatus
JP2006163291A (ja) * 2004-12-10 2006-06-22 Canon Inc 光学素子及びその製造方法
JP2006191302A (ja) * 2005-01-05 2006-07-20 Toshiba Corp 電子カメラ装置とその操作案内方法
JP4804058B2 (ja) * 2005-07-28 2011-10-26 キヤノン株式会社 干渉測定装置
US7215504B1 (en) 2005-10-19 2007-05-08 Western Digital Technologies, Inc. Disk drive using an optical sensor to detect a position of an actuator arm
US7495857B1 (en) 2005-12-30 2009-02-24 Western Digital Technologies, Inc. Servo writing a disk drive by writing spiral tracks using a mechanical position sensor
US7365932B1 (en) 2005-12-30 2008-04-29 Western Digital Technologies, Inc. Disk drive comprising an optical sensor for vibration mode compensation
US7619844B1 (en) 2005-12-30 2009-11-17 Western Digital Technologies, Inc. Disk drive comprising a mechanical position sensor to prevent a runaway condition
US7480116B1 (en) 2006-01-20 2009-01-20 Western Digital Technologies, Inc. Disk drive employing coarse position feedback from mechanical position sensor to improve format efficiency
US7605994B2 (en) * 2006-09-27 2009-10-20 Samsung Electronics Co., Ltd. Multiple sinusoidal seek servo system for reducing seek acoustics and seek time in hard disk drives
JP6634581B2 (ja) * 2015-09-07 2020-01-22 株式会社テージーケー モータアクチュエータ、モータアクチュエータの加工方法及びモータアクチュエータの検査方法
CN109821761B (zh) * 2019-03-13 2024-04-02 东莞市冠泰机电设备有限公司 一种多臂层零件的孔径检测装置

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US4641296A (en) * 1983-04-28 1987-02-03 Nippon Kogaku K.K. Optical head for information recording apparatus
DE3429382A1 (de) * 1983-08-10 1985-02-28 Canon K.K., Tokio/Tokyo Optischer kopf
JPS61160845A (ja) * 1985-01-09 1986-07-21 Nippon Kogaku Kk <Nikon> 光デイスクの記録再生装置
US4742218A (en) * 1985-03-11 1988-05-03 Hitachi, Ltd. Focus error detection apparatus utilizing focusing an front and rear sides of focal planes
JPS6226644A (ja) * 1985-07-29 1987-02-04 Hitachi Ltd 光学式情報記録再生装置
US5026623A (en) 1986-04-21 1991-06-25 Canon Kabushiki Kaisha Optical recording medium
WO1988007253A1 (en) * 1987-03-09 1988-09-22 Matsushita Electric Industrial Co., Ltd. Magnetic recording/reproducing apparatus
US5067813A (en) 1988-04-06 1991-11-26 Canon Kabushiki Kaisha Optical apparatus for measuring displacement of an object
US5647049A (en) * 1991-05-31 1997-07-08 Kabushiki Kaisha Toshiba Video recording/reproducing apparatus which uses a differential motion vector determined using two other motion vectors
DE69221565T2 (de) 1991-08-30 1998-02-12 Canon Kk Kopfpositionierungsgerät
US5504722A (en) * 1993-01-27 1996-04-02 Nippon Telegraph And Telephone Corporation Magneto-optic information storage system utilizing a TE/TM mode controlling laser diode
JPH0727543A (ja) 1993-07-12 1995-01-27 Canon Inc 光学式変位センサー
JPH1079180A (ja) 1996-08-30 1998-03-24 Canon Inc 情報記録装置
US6631047B2 (en) * 1997-09-22 2003-10-07 Canon Kabushiki Kaisha Interference device, position detecting device, positioning device and information recording apparatus using the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7406198B2 (en) 2003-03-25 2008-07-29 Fujitsu Limited Image capture apparatus
JP2006112974A (ja) * 2004-10-15 2006-04-27 Canon Inc 位置検出装置及び方法
US7391521B2 (en) 2004-10-15 2008-06-24 Canon Kabushiki Kaisha Position detection apparatus and method
JP2007033317A (ja) * 2005-07-28 2007-02-08 Canon Inc 干渉測定装置
US7551290B2 (en) 2005-07-28 2009-06-23 Canon Kabushiki Kaisha Absolute position measurement apparatus
JP2012233829A (ja) * 2011-05-06 2012-11-29 Canon Inc 干渉計測装置
CN107942289A (zh) * 2017-12-13 2018-04-20 苏州科瓴精密机械科技有限公司 定位模块及具有其的机器人
US11885742B2 (en) 2019-03-26 2024-01-30 Nec Corporation Receiver, detection system, and detection method

Also Published As

Publication number Publication date
US6618218B1 (en) 2003-09-09

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